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Your questions · Connecticut

3 Best Registered Agents in Connecticut (2026) and Why

For registered agents in Connecticut, our 2026 reply is CT Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Connecticut Registered Agent.co ($99 a year), in that order. Prices begin at $99 to $149 a year and reach $297 to $447 across three years.
By the LLC Answered editorial team

Answer in four lines

Short reply
Mandatory here?
Must be named
Official term
Registered agent
Yearly price
$99 to $149 per year
Best first
CT Registered Agent.org, Mainstay Filing then Connecticut Registered Agent.co

Hire these in Connecticut

Order set by our five tests: three-year cost first, then what the price covers.

#1 Number 1

1. CT Registered Agent.org: best for one-state companies

$99 yearly, then $99

Hire CT Registered Agent.org in Connecticut: its service is $99 annually and puts a street address on file.

Cost decides it: three years here total less than at Mainstay Filing.

What is bundled

  • An address in the state
  • Scanned copies of legal papers

Pluses

  • Under Mainstay Filing on yearly price
  • $99 a year, same at renewal

Downsides

  • One-state service
  • It does not take on the annual report
Go to CT Registered Agent.org Partner link. We may earn money if you buy.
#2 Fifty states

2. Mainstay Filing: best for owners who plan to grow

$149 yearly, then $149

Mainstay Filing is number 2, because the $149 yearly price follows the company to any state it adds.

The three-year gap to CT Registered Agent.org is $150, which explains the lower rank.

What is bundled

  • Registered office on file with the state
  • Up to three official mailings a year scanned for you
  • The same service covers LLCs, corporations, LPs, LLPs and nonprofits

Pluses

  • Valid wherever the LLC registers
  • Annual price $149, renewal price $149

Downsides

  • $50 more per year than the local pick
  • Just the agent role
Go to Mainstay Filing Partner link. We may earn money if you buy.
#3 Connecticut choice

3. Connecticut Registered Agent.co: best for staying local

$99 yearly, then $99

Connecticut Registered Agent.co is number 3, because its service is $99 annually and puts a street address on file.

The same published prices as CT Registered Agent.org, so choose whichever you prefer.

What is bundled

  • An address in the state
  • Scanned copies of legal papers

Pluses

  • Under Mainstay Filing on yearly price
  • $99 a year, same at renewal

Downsides

  • One-state service
  • It does not take on the annual report
Go to Connecticut Registered Agent.co Partner link. We may earn money if you buy.

The table

#WhoFirst yearRenewal3-year costIncluded
1 CT Registered Agent.org $99$99/yr$297an address in the state; scanned copies of legal papers Go to CT Registered Agent.org Partner link. We may earn money if you buy.
2 Mainstay Filing $149$149/yr$447registered office on file with the state; up to three official mailings a year scanned for you; The same service covers LLCs, corporations, LPs, LLPs and nonprofits Go to Mainstay Filing Partner link. We may earn money if you buy.
3 Connecticut Registered Agent.co $99$99/yr$297an address in the state; scanned copies of legal papers Go to Connecticut Registered Agent.co Partner link. We may earn money if you buy.

Each company's listed prices, November 13, 2026. State fees come on top and do not vary by pick.

Questions and replies

Does this state want a registered agent?

Every LLC must name a registered agent with an in-state street address.

Governing law: Conn. Gen. Stat. § 34-243n. source cga.ct.gov (October 2026) on file

Who does the state allow?

A Connecticut resident, or a business entity formed in Connecticut or registered there. The agent signs to accept the appointment.

An owner who qualifies can serve at no cost.

What is the price of agent service?

Count on $99 to $149 a year, $297 to $447 over three.

The state charges the same no matter the agent.

What does the agent handle day to day?

Legal papers and state notices for the company are delivered to it, at an address in Connecticut.

Look for an agent who passes documents along promptly, so no deadline slips. What does service of process mean?

What else is due annually?

Set aside $80 each year for the annual report. Mark the state's date, on or before March 31, on your calendar.

source business.ct.gov (October 2026) on file

Why is number one first?

Because of three-year price (36% of the weight): CT Registered Agent.org is best there.

The two heavy tests are three-year price (36%) and paperwork covered (29%); three lighter tests follow.

CT Registered Agent.org: $297 for three years, which undercuts Mainstay Filing by $150.

Our method in full

Connecticut: the requirements, cited

QuestionReplyProof
LLC filing fee $120source business.ct.gov (October 2026) on file
Registered agent Must be namedsource cga.ct.gov (October 2026) on file
Annual report $80 every yearsource business.ct.gov (October 2026) on file
State fees, first three years $280Added from the rows

To get the three-year number we add the formation filing, two later reports and any minimum tax, and we do not count costs without a fixed price.

More quick questions

Am I allowed to be my own agent?

You can once you fit the rule. Owners often still hire a service to keep a home address off the record.

What address does an agent need?

The address has to be a Connecticut street address that is not a P.O. box, plus a Connecticut mailing address, which can be a P.O. box.

What does each charge over three years?

CT Registered Agent.org $297; Mainstay Filing $447; Connecticut Registered Agent.co $297

Where are these numbers from?

Fees set by the state come from Connecticut's own publications; what services charge comes from their published prices.

Can I skip hiring one?

Hiring is optional. The law asks for a filing, not for a filer.

What is the best registered agent for Connecticut?

CT Registered Agent.org is first on three-year price, with Mainstay Filing and Connecticut Registered Agent.co behind it.

See also

What backs this page

  1. Connecticut Secretary of the State: business.ct.gov, last confirmed August 2026
  2. Connecticut Secretary of the State: business.ct.gov, last confirmed August 2026
  3. Connecticut yearly filing: Annual report: business.ct.gov, last confirmed October 2026
  4. Connecticut report due date: cga.ct.gov, last confirmed August 2026
  5. Connecticut formation fee: Filing fee: business.ct.gov, last confirmed October 2026
  6. Connecticut formation fee: Filing fee: business.ct.gov, last confirmed October 2026
  7. November 13, 2026 price read: CT Registered Agent.org pricing page
  8. November 13, 2026 price read: Mainstay Filing Connecticut service page
  9. November 13, 2026 price read: Connecticut Registered Agent.co pricing page